Chlorophyll in the water changes the way it reflects and absorbs sunlight, allowing scientists to map the amount and location of phytoplankton. These measurements give scientists valuable insights into the health of the ocean environment, and help …

The image reveals the close relationship between physical and chemical ocean processes—like temperature differences and nutrient upwelling from the deep ocean that happens near coastlines—and ocean plant life. Chlorophyll (and therefore phytoplankton) concentrations are higher in coastal areas than they are in the open ocean.

2024年2月19日 · Here we develop a metric to quantify time series complexity (i.e., a measure of the ups and downs of sequential observations) in chlorophyll- a concentration and show that seemingly disparate...

2020年9月17日 · A global average of these regional trends shows a net positive trend of 0.08 ± 0.35% year −1, highlighting the importance of considering chlorophyll changes at a regional level. We compare ...

2023年12月19日 · In this study, we: (1) compute trends in frontal characteristics and Chl in ocean warming hotspots; (2) classify global trends of frontal activity and Chl based on commonality across...

2022年7月27日 · This is 0.04° (~4-km) resolution science-quality chlorophyll-a concentration data from the MODIS sensor on the NASA Aqua satellite. Daily, weekly and monthly versions are available from Jan 2003 to Present and have global coverage.

Phytoplankton contain a photosynthetic pigment called chlorophyll that lends them a greenish color. When phytoplankton grow in large numbers they make the ocean appear greenish. These maps made from satellite observations show where and how much phytoplankton were growing on a given day, or over a span of days.

2014年3月1日 · Here, we use a new, publicly-available database of historical shipboard oceanographic measurements to estimate long-term changes in chlorophyll concentration (Chl; a widely used proxy for phytoplankton biomass) from 1890 to 2010.

This paper presents a global compilation of chlorophyll fluorescence profiles ob-tained from online databases and from published and unpublished individual sources. 10 These were converted into a global compilation of phytoplankton biomass (i.e. chloro-phyll a concentration) and community composition using the FLAVOR method. Prior

2021年4月18日 · Using both global and regional HPLC data sets, Kramer and Siegel performed hierarchical cluster and EOF analyses to examine the associates between and among pigment groups, and demonstrated that four major phytoplankton groups (diatoms/dinoflagellates, prokaryotes, haptophytes, and green algae) could be identified on global scales. Their ...